On the crossing relation in the presence of defects

The OPE of local operators in the presence of defect lines is considered both in the rational CFT and the $c>25$ Virasoro (Liouville) theory. The duality transformation of the 4-point function with inserted defect operators is explicitly computed. The two channels of the correlator reproduce the expectation values of the Wilson and 't Hooft operators, recently discussed in Liouville theory in relation to the AGT conjecture.Comment: TEX file with harvmac; v3: JHEP versio

Conformal Field Theories, Graphs and Quantum Algebras

This article reviews some recent progress in our understanding of the structure of Rational Conformal Field Theories, based on ideas that originate for a large part in the work of A. Ocneanu. The consistency conditions that generalize modular invariance for a given RCFT in the presence of various types of boundary conditions --open, twisted-- are encoded in a system of integer multiplicities that form matrix representations of fusion-like algebras. These multiplicities are also the combinatorial data that enable one to construct an abstract ``quantum'' algebra, whose $6j$- and $3j$-symbols contain essential information on the Operator Product Algebra of the RCFT and are part of a cell system, subject to pentagonal identities. It looks quite plausible that the classification of a wide class of RCFT amounts to a classification of ``Weak $C^*$- Hopf algebras''.Comment: 23 pages, 12 figures, LateX. To appear in MATHPHYS ODYSSEY 2001 --Integrable Models and Beyond, ed. M. Kashiwara and T. Miwa, Progress in Math., Birkhauser. References and comments adde

Implementation of Standards of Good Pharmacy Practice in the World: A Review

The aim of the study is to review the historical stages of development of the requirements of good pharmaceutical practice (GPP), generalization of the normative documents recommended by the International pharmaceutical company (MFP) for use in the world of pharmaceutical practice. Methods of generalization of the information material and system analysis were used in the study. Historical stages of the development of the concept of the GPP in the world and the role of the World Health Organization and the FIP in the process were analyzed. Researches of professional standards of pharmacy practice in developed countries reveal different approaches to the regulation of such activities, however, despite the applicable model standards are developed by the pharmaceutical associations and are used by regulatory bodies, business owners, and professionals to control the quality of pharmacy services that are provided to the population. The study indicates that the development of the GPP standards should be resolved at the level of public professional organizations as the national regulation of pharmacy practice in different countries varies significantly. Prospects of further scientific researches are aimed on using the results of the study while developing and implementing national standards of the GPP in the world

The Perspective Matters! Multisensory Integration in Ego-Centric Reference Frames Determines Full-Body Ownership

Recent advances in experimental science have made it possible to investigate the perceptual processes involved in generating a sense of owning an entire body. This is achieved by full-body ownership illusions which make use of specific patterns of visual and somatic stimuli integration. Here we investigate the fundamental question of the reference frames used in the process of attributing an entire body to the self. We quantified the strength of the body-swap illusion in conditions where the participants were observing this artificial body from the perspective of the first or third person. Consistent results from subjective reports and physiological recordings show that the first person visual perspective is critical for the induction of this full-body ownership illusion. This demonstrates that the multisensory integration processes producing the sense of corporeal self operates in an ego-centric reference frame

Minimal model boundary flows and c=1 CFT

We consider perturbations of unitary minimal models by boundary fields. Initially we consider the models in the limit as c -> 1 and find that the relevant boundary fields all have simple interpretations in this limit. This interpretation allows us to conjecture the IR limits of flows in the unitary minimal models generated by the fields \phi_{rr} of `low' weight. We check this conjecture using the truncated conformal space approach. In the process we find evidence for a new series of integrable boundary flows.Comment: (latex2e, 27 pages, 17 figures

Way of banking development abroad : branches or subsidiaries

The purpose of the study is to show what kind of risks would have emerged for bank depositors if there are economical and political risks in a given country. For example, as is the case with the crisis in Greece, a threat or salvation for the banking organizational forms abroad exists regarding which type of bank development is more efficient, branches or subsidiaries. Respectively why do the big banks prefer to operate through branches and those which are focused on retail sales through subsidiaries? What impact could the political and economic risks have on the required reserves on the parent bank? Does the decision depend on the applied organizational form of the bank or on other reasons?peer-reviewe

Dip patch clamp currents suggest electrodiffusive transport of the polyelectrolyte DNA through lipid bilayers

Spassova M, Tsoneva I, Petrov AG, Petkova JI, Neumann E. Dip patch clamp currents suggest electrodiffusive transport of the polyelectrolyte DNA through lipid bilayers. Biophysical Chemistry. 1994;52(3):267-274.Planar lipid bilayers formed from monolayers of diphytanoyl lecithin (DPhL) were found to interact with plasmid DNA (5.6 kbp; M(r) = 3.7 X 10(6)) leading to an increase in the conductance of the membrane. The association of DNA with a lipid bilayer greatly facilitates the transport of the small ions of the main salt KCl. The appearance of long-lived current levels, for instance, of 27.6 pA at V-m = +60 mV membrane voltage, where the actual contact (adsorption) is electrophoretically enhanced, suggests a locally conductive DNA/lipid interaction zone where parts of the DNA strand may be transiently inserted in the bilayer, leaving other parts of the DNA probably protruding out from the outer surface of the bilayer. At V-m = -60 mV, where DNA can be electrophoretically moved away from the membrane, the membrane current is practically zero. This current asymmetry is initially also observed at higher voltages, for instance at 200 mV. However, if the voltage sign (V-m = +200 mV) is changed after a transient positive current (approximate to 15 pA) was observed, there is also now (at V-m = -200 mV) a finite negative current at the negative membrane voltage. Thus, it appears that at V-m = +200 mV the adsorbed parts of the polyelectrolyte DNA are not only transiently inserted in, but actually also electrophoretically pulled through, the porous zones onto the other membrane side leaving the bilayer structure basically intact. These data provide direct electric evidence for the electrophoretic transport of a highly charged and hydrated macromolecule, probably together with the associated gegen-ions, through the thin hydrophobic film of the lipid bilayer

Anomalous thickness dependence of the Hall effect in ultrathin Pb layers on Si(111)

The magnetoconductive properties of ultrathin Pb films deposited on Si(111) are measured and compared with density-functional electronic band-structure calculations on two-dimensional, free-standing, 1 to 8 monolayers thick Pb(111) slabs. A description with free-standing slabs is possible because it turned out that the Hall coefficient is independent of the substrate and of the crystalline order in the film. We show that the oscillations in sign of the Hall coefficient observed as a function of film thickness can be explained directly from the thickness dependent variations of the electronic bandstructure at the Fermi energy.Comment: 4 pages incl. 3 figures, RevTeX, to appear in Phys. Rev.